real to int?

[bgmrk]

i'm trying to make a program that will recognize whether a number is a perfect square (8 is a perfect square of 64) or not i'm a little confused...i'm trying to use the round command to make it aout 100 times easier but its not going to well

this is what i have: Code:

code:

var x, y : real for i : 40..100 y := i**0.5 if y*y = i then put i end if end for

this gives all the numbers that aren't perfect squares

this is what i want

code:

var x, y : real for i : 40..100 y := i**0.5 round (y) if y*y = i then put i end if end for

how do i fix this error so it actualy works

[Delos]

Please indent.

bgmrk wrote:

code:

var x, y : real for i : 40..100    y := i**0.5    % Takes sqrt.    if y*y = i then    % checks if square is i       put i    end if end for

That part makes no sense. Basically, it's:

math wrote:

(sqrt(x))^2 = x

Ergo, all values will return.

What you'll want to do (if I understand your intent correctly) is check if the sqrt() of a given number is a whole number. If it is, then woo-hoo, it's a perfect square.
There are probably more mathematically correct ways of doing it, of course.

[bgmrk]

thanx for the quick reply nd sry for not indenting

where would i put that line because i am still ver confused

[bgmrk]

ok ok i got it...thanx..so much this was my last one to do..u r a god sent:)

[redrenagade]

Just what do you plan to use that for anyway? Just curious.

[bgmrk]

it's for school...but i figured it out...thanx